Global Patent Index - EP 3808789 A1

EP 3808789 A1 20210421 - EPOXY RESIN COMPOSITION, PREPREG, AND FIBER-REINFORCED COMPOSITE MATERIAL

Title (en)

EPOXY RESIN COMPOSITION, PREPREG, AND FIBER-REINFORCED COMPOSITE MATERIAL

Title (de)

EPOXIDHARZZUSAMMENSETZUNG, PREPREG UND FASERVERSTÄRKTES VERBUNDMATERIAL

Title (fr)

COMPOSITION DE RÉSINE ÉPOXY, PRÉIMPRÉGNÉ, ET MATÉRIAU COMPOSITE RENFORCÉ DE FIBRES

Publication

EP 3808789 A1 20210421 (EN)

Application

EP 19821586 A 20190617

Priority

  • JP 2018115109 A 20180618
  • JP 2018115110 A 20180618
  • JP 2018115111 A 20180618
  • JP 2018138178 A 20180724
  • JP 2019023850 W 20190617

Abstract (en)

The purpose of the present invention is to provide: an epoxy resin composition capable of giving cured resins which combine flexural modulus with flexural strain on a high level and have excellent heat resistance; a prepreg comprising the epoxy resin composition and reinforcing fibers; and a fiber-reinforced composite material obtained by curing the prepreg and excellent especially in terms of 0° and 90° bending strength. An embodiment of the epoxy resin composition of the present invention for achieving such purpose is an epoxy resin composition which comprises the following components [A], [B], and [C] and satisfies a specific requirement. Component [A]: a trifunctional amine type epoxy resin. Component [B]: a bisphenol F type epoxy resin which is solid at 25°C. Component [C]: an aromatic amine compound.

IPC 8 full level

C08G 59/50 (2006.01); C08G 59/32 (2006.01); C08G 59/38 (2006.01); C08J 5/24 (2006.01); C08K 5/17 (2006.01); C08L 63/00 (2006.01); C08L 63/02 (2006.01); C08L 81/06 (2006.01); C08L 101/00 (2006.01)

CPC (source: EP KR US)

C08G 59/245 (2013.01 - EP); C08G 59/3218 (2013.01 - KR); C08G 59/3227 (2013.01 - EP KR); C08G 59/38 (2013.01 - KR); C08G 59/4021 (2013.01 - KR); C08G 59/50 (2013.01 - KR); C08G 59/504 (2013.01 - EP); C08J 5/04 (2013.01 - KR); C08J 5/243 (2021.05 - EP KR US); C08J 5/249 (2021.05 - EP KR US); C08L 63/00 (2013.01 - KR US); C08L 81/06 (2013.01 - KR); C08J 2363/00 (2013.01 - EP KR US); C08J 2463/00 (2013.01 - KR US); C08J 2481/06 (2013.01 - KR US); C08L 2205/025 (2013.01 - KR US); C08L 2205/035 (2013.01 - KR US)

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

Designated extension state (EPC)

BA ME

DOCDB simple family (publication)

EP 3808789 A1 20210421; EP 3808789 A4 20220525; CN 112218904 A 20210112; JP 7290109 B2 20230613; JP WO2019244829 A1 20210506; KR 20210020883 A 20210224; TW 202000786 A 20200101; US 11912859 B2 20240227; US 2021253843 A1 20210819; WO 2019244829 A1 20191226

DOCDB simple family (application)

EP 19821586 A 20190617; CN 201980037049 A 20190617; JP 2019023850 W 20190617; JP 2019533121 A 20190617; KR 20207034422 A 20190617; TW 108120739 A 20190614; US 201916973768 A 20190617